Earlier this month, rights group Amnesty International accused Israel of “committing genocide” against Palestinians in Gaza since the start of the war.
In November, the International Criminal Court issued arrest warrants for Israeli Prime Minister Benjamin Netanyahu and former defense minister Yoav Gallant on suspicion of crimes against humanity and war crimes.
Israel’s government vehemently denies the allegations, and has appealed the warrants.
Ahmed Moor, a plaintiff in Tuesday’s lawsuit, said seven of his family members in Gaza were living “under a constant fear of bombardment,” and that one had been killed.
“My family members are people just like you and me, and their lives have been destroyed by American weapons in direct violation of American law,” he said.
“My family’s living a nightmare”.